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U.S. Department of Energy
Office of Scientific and Technical Information

Overlapping horizontal fracture formation and flopping process

Patent ·
OSTI ID:6890479
This patent describes an improvement in a fluid flood process for enhancing the secondary recovery of hydrocarbons from a reservoir involving at least one pair of respective fluid injection and hydrocarbon recovery wells, having well bores. It includes the steps of establishing a horizontal injection fracture for each injection well, the injection fracture extending substantially horizontally from the injection well bore proximate a lower portion of the reservoir and establishing a horizontal recovery fracture for each recovery well. The recovery fracture extending substantially horizontally from the recovery well bore and the recovery fracture being vertically displaced from and above the injection fracture in the hydrocarbon reservoir.
Assignee:
Comdisco Resources, Inc., San Francisco, CA
Patent Number(s):
US 4889186; A
Application Number:
PPN: US 7-186046A
OSTI ID:
6890479
Country of Publication:
United States
Language:
English